Kei Megumi (恵けい - Megumi Kei) is a JapaneseAV idol. Born June 10, 1989 in Chiba Prefecture, Japan, her bust measurement is 107cm and she wears a metric K cup bra.

Kei Megumi's AV debut was on February 7, 2009 with S1. Before her entry into adult video, she was a Gravure idol. With the release of SOE-336, she no longer is under an exclusivity contract with S1 and has begun to transition from "New Face" (Young/Teen) AV titles to "Elder Sister" / "Married Woman" (Middle Age) titles.